» Articles » PMID: 34073457

A Confocal Microscopic Study of Gene Transfer into the Mesencephalic Tegmentum of Juvenile Chum Salmon, , Using Mouse Adeno-Associated Viral Vectors

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2021 Jun 2
PMID 34073457
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

To date, data on the presence of adenoviral receptors in fish are very limited. In the present work, we used mouse recombinant adeno-associated viral vectors (rAAV) with a calcium indicator of the latest generation GCaMP6m that are usually applied for the dorsal hippocampus of mice but were not previously used for gene delivery into fish brain. The aim of our work was to study the feasibility of transduction of rAAV in the mouse hippocampus into brain cells of juvenile chum salmon and subsequent determination of the phenotype of rAAV-labeled cells by confocal laser scanning microscopy (CLSM). Delivery of the gene in vivo was carried out by intracranial injection of a GCaMP6m-GFP-containing vector directly into the mesencephalic tegmentum region of juvenile (one-year-old) chum salmon, . AAV incorporation into brain cells of the juvenile chum salmon was assessed at 1 week after a single injection of the vector. AAV expression in various areas of the thalamus, pretectum, posterior-tuberal region, postcommissural region, medial and lateral regions of the tegmentum, and mesencephalic reticular formation of juvenile was evaluated using CLSM followed by immunohistochemical analysis of the localization of the neuron-specific calcium binding protein HuCD in combination with nuclear staining with DAPI. The results of the analysis showed partial colocalization of cells expressing GCaMP6m-GFP with red fluorescent HuCD protein. Thus, cells of the thalamus, posterior tuberal region, mesencephalic tegmentum, cells of the accessory visual system, mesencephalic reticular formation, hypothalamus, and postcommissural region of the mesencephalon of juvenile chum salmon expressing GCaMP6m-GFP were attributed to the neuron-specific line of chum salmon brain cells, which indicates the ability of hippocampal mammal rAAV to integrate into neurons of the central nervous system of fish with subsequent expression of viral proteins, which obviously indicates the neuronal expression of a mammalian adenoviral receptor homolog by juvenile chum salmon neurons.

Citing Articles

Adult Neurogenesis of Teleost Fish Determines High Neuronal Plasticity and Regeneration.

Pushchina E, Kapustyanov I, Kluka G Int J Mol Sci. 2024; 25(7).

PMID: 38612470 PMC: 11012045. DOI: 10.3390/ijms25073658.


Transduction of Brain Neurons in Juvenile Chum Salmon () with Recombinant Adeno-Associated Hippocampal Virus Injected into the Cerebellum during Long-Term Monitoring.

Pushchina E, Bykova M, Shamshurina E, Varaksin A Int J Mol Sci. 2022; 23(9).

PMID: 35563338 PMC: 9101580. DOI: 10.3390/ijms23094947.

References
1.
Pitcovski J, MUALEM M, Krispel S, Shmueli E, Peretz Y, Gutter B . The complete DNA sequence and genome organization of the avian adenovirus, hemorrhagic enteritis virus. Virology. 1998; 249(2):307-15. DOI: 10.1006/viro.1998.9336. View

2.
Lam S, Chua H, Gong Z, Lam T, Sin Y . Development and maturation of the immune system in zebrafish, Danio rerio: a gene expression profiling, in situ hybridization and immunological study. Dev Comp Immunol. 2003; 28(1):9-28. DOI: 10.1016/s0145-305x(03)00103-4. View

3.
Akamatsu W, Okano H, Osumi N, Inoue T, Nakamura S, Sakakibara S . Mammalian ELAV-like neuronal RNA-binding proteins HuB and HuC promote neuronal development in both the central and the peripheral nervous systems. Proc Natl Acad Sci U S A. 1999; 96(17):9885-90. PMC: 22305. DOI: 10.1073/pnas.96.17.9885. View

4.
Sussman R . Direct DNA delivery into zebrafish embryos employing tissue culture techniques. Genesis. 2001; 31(1):1-5. DOI: 10.1002/gene.1075. View

5.
Gulias P, Guerra-Varela J, Gonzalez-Aparicio M, Ricobaraza A, Vales A, Gonzalez-Aseguinolaza G . as Model Organism for Adenoviral Vector Evaluation. Genes (Basel). 2019; 10(12). PMC: 6947401. DOI: 10.3390/genes10121053. View